1/*
2 * Copyright (C) 2010, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#pragma once
26
27#include "AudioDSPKernelProcessor.h"
28#include "AudioParam.h"
29#include <memory>
30#include <wtf/RefPtr.h>
31
32namespace WebCore {
33
34class AudioDSPKernel;
35
36class DelayProcessor final : public AudioDSPKernelProcessor {
37 WTF_MAKE_FAST_ALLOCATED;
38public:
39 DelayProcessor(AudioContext&, float sampleRate, unsigned numberOfChannels, double maxDelayTime);
40 virtual ~DelayProcessor();
41
42 std::unique_ptr<AudioDSPKernel> createKernel() override;
43
44 AudioParam* delayTime() const { return m_delayTime.get(); }
45
46 double maxDelayTime() { return m_maxDelayTime; }
47private:
48
49 RefPtr<AudioParam> m_delayTime;
50 double m_maxDelayTime;
51};
52
53} // namespace WebCore
54